package com.tawl.framework.config;

import com.tawl.framework.config.properties.PermitAllUrlProperties;
import com.tawl.framework.security.filter.JwtAuthenticationTokenFilter;
import com.tawl.framework.security.handle.AuthenticationEntryPointImpl;
import com.tawl.framework.security.handle.LogoutSuccessHandlerImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.web.authentication.logout.LogoutFilter;
import org.springframework.web.filter.CorsFilter;
/**
 * spring security配置
 *
 * @author ruoyi
 */
@EnableMethodSecurity(prePostEnabled = true, securedEnabled = true)
@Configuration
public class SecurityConfig {
  /**
   * 自定义用户认证逻辑
   */
  @Autowired
  private UserDetailsService userDetailsService;

  /**
   * 认证失败处理类
   */
  @Autowired
  private AuthenticationEntryPointImpl unauthorizedHandler;

  /**
   * 退出处理类
   */
  @Autowired
  private LogoutSuccessHandlerImpl logoutSuccessHandler;

  /**
   * token认证过滤器
   */
  @Autowired
  private JwtAuthenticationTokenFilter authenticationTokenFilter;

  /**
   * 跨域过滤器
   */
  @Autowired
  private CorsFilter corsFilter;

  /**
   * 允许匿名访问的地址
   */
  @Autowired
  private PermitAllUrlProperties permitAllUrl;

  /**
   * 身份验证实现
   */
  @Bean
  public AuthenticationManager authenticationManager() {
    DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
    daoAuthenticationProvider.setUserDetailsService(userDetailsService);
    daoAuthenticationProvider.setPasswordEncoder(bCryptPasswordEncoder());
    return new ProviderManager(daoAuthenticationProvider);
  }

  /**
   * anyRequest          |   匹配所有请求路径
   * access              |   SpringEl表达式结果为true时可以访问
   * anonymous           |   匿名可以访问
   * denyAll             |   用户不能访问
   * fullyAuthenticated  |   用户完全认证可以访问（非remember-me下自动登录）
   * hasAnyAuthority     |   如果有参数，参数表示权限，则其中任何一个权限可以访问
   * hasAnyRole          |   如果有参数，参数表示角色，则其中任何一个角色可以访问
   * hasAuthority        |   如果有参数，参数表示权限，则其权限可以访问
   * hasIpAddress        |   如果有参数，参数表示IP地址，如果用户IP和参数匹配，则可以访问
   * hasRole             |   如果有参数，参数表示角色，则其角色可以访问
   * permitAll           |   用户可以任意访问
   * rememberMe          |   允许通过remember-me登录的用户访问
   * authenticated       |   用户登录后可访问
   */
  @Bean
  protected SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
    return httpSecurity
            // CSRF禁用，因为不使用session
            .csrf(csrf -> csrf.disable())
            // 禁用HTTP响应标头
            .headers((headersCustomizer) -> {
              headersCustomizer.cacheControl(cache -> cache.disable()).frameOptions(options -> options.sameOrigin());
            })
            // 认证失败处理类
            .exceptionHandling(exception -> exception.authenticationEntryPoint(unauthorizedHandler))
            // 基于token，所以不需要session
            .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
            // 注解标记允许匿名访问的url
            .authorizeHttpRequests((requests) -> {
              permitAllUrl.getUrls().forEach(url -> requests.requestMatchers(url).permitAll());
              // 对于登录login 注册register 验证码captchaImage 允许匿名访问
              requests.requestMatchers("/login", "/register", "/captchaImage","/smsCode/*").permitAll()
                      // 静态资源，可匿名访问
                      .requestMatchers(HttpMethod.GET, "/", "/*.html", "/**.html", "/**.css", "/**.js", "/profile/**").permitAll()
                      .requestMatchers("/swagger-ui.html", "/v3/api-docs/**", "/swagger-ui/**", "/druid/**").permitAll()
                      // 除上面外的所有请求全部需要鉴权认证
                      .anyRequest().authenticated();
            })
            // 添加Logout filter
            .logout(logout -> logout.logoutUrl("/logout").logoutSuccessHandler(logoutSuccessHandler))
            // 添加JWT filter
            .addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class)
            // 添加CORS filter
            .addFilterBefore(corsFilter, JwtAuthenticationTokenFilter.class)
            .addFilterBefore(corsFilter, LogoutFilter.class)
            .build();
  }

  /**
   * 强散列哈希加密实现
   */
  @Bean
  public BCryptPasswordEncoder bCryptPasswordEncoder() {
    return new BCryptPasswordEncoder();
  }
}
